As is well known, it is network that has turned the traditional "man-man" educational system made up of by only teachers and students into a new system of "man-machine-man" composed of network as well as teachers and students. In the new system, teachers' authority has been lowered sharply because students also have access to teachers' knowledge from the internet at any time and as a result teachers are faced with newer and higher requirements for their comprehensive abilities. Therefore, only by relocating themselves, developing and perfecting themselves constantly, developing their abilities in conformity to the present network era and equipping themselves with a series of necessary qualities can they really control the commanding point and take the commitment of educating people as well as importing knowledge.